ATCvet code QJ51 Antibacterials for intramammary use is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System for veterinary medicinal products, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products for veterinary use. Subgroup QJ51 is part of the anatomical group QJ Antiinfectives for systemic use.
National issues of the ATC classification may include additional codes not present in this list, which follows the WHO version.